From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3257637B020 for ; Sat, 15 Aug 2026 06:29:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786775346; cv=none; b=Df20fekJiJOYX2hQa8izIz0RL1pC5Diczblg8x3Abm9qdTM/paMQ8V3WSyz2pTCQ6RPiI6ejEOdGHOoXgep4ETAQXj7N0pE39+BpykJpcXCUeAGoohwuvghrT32/BTe6LROH2ypQri5gyrprnFz+z0NCJIY8o+n119jo9YpkqWE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786775346; c=relaxed/simple; bh=qJ3V4q0FV1WaN19xUOGO0VZ7wdFOHjwsODrv3LJzW2A=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=FiEYxuuw0ROGV2+T1Q1/bAzTZffZf9e74NJZu68Q0b2OKDKCiEHLx+lIACEtJ4oEk8VydcvG/S7CsOCYIwuwtbBuyJLzewobZ2D+7Iw9HfPqi8c1H7O+xgfAwjYUpzQ4o/Qg3ekPGCV/7gxmYY8zBCuCG6shCGC9HRrLszw7PsI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=gopdghEG; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="gopdghEG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 864511F000E9; Sat, 15 Aug 2026 06:29:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786775345; bh=KsQM0KFjcswMfNo87NvW1uv2QC94kCffPwxQOsQyI0I=; h=From:To:Cc:Subject:Date:Reply-To; b=gopdghEG3QmJxJP4YeQcdGMnaj5UqAiGMMbfe5YkYDI2ftwMuzz4NHBY6g7oQF2Ep KZOXLC4V7FSlXXNrjEoBMj/zyHdS2PJcpe59u0l04lcHAtSL6MXofQqN0mdM82xjDB LLaYSzyPsTLyenY8vriOcVmpJDPdXOD97Rrn43hI= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-72453: regcache: Do not overwrite error code when finalizing cache after error Date: Sat, 15 Aug 2026 15:08:52 +0900 Message-ID: <2026081531-CVE-2026-72453-a018@gregkh> X-Mailer: git-send-email 2.55.0 Reply-To: , Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2154; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=HNXpBFq7Sa2YMrZj3Xaej9bD9mFHowKr+5krGMfzhus=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkNDN+7JJ7/nzpfrTLj8/tfn07csFdx2MAqtXLHkdC/3 OrC03dmdMSyMAgyMciKKbJ82cZzdH/FIUUvQ9vTMHNYmUCGMHBxCsBEjq9nWLD1z776iKQ3G/Lf /H8RsiHGcb3I/ucM83T/pLwRSbAOjp1WOoPp5NJkyZmNHwA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: regcache: Do not overwrite error code when finalizing cache after error During regcache initialization, if an error occurs in the cache_ops->populate callback, and if cache operations include an exit callback, the error code from populate() is overwritten with the return value from exit(). This hides the error condition from the caller of regcache_init(), and can cause NULL pointer dereferences when the regcache is later accessed. The Linux kernel CVE team has assigned CVE-2026-72453 to this issue. Affected and fixed versions =========================== Issue introduced in 6.19 with commit 94a3a95f03154d8d4c6206950a7f6ef9a30baec6 and fixed in 7.1.5 with commit 9f171aa115ec76be02c76c5765cd2c865279e34a Issue introduced in 6.19 with commit 94a3a95f03154d8d4c6206950a7f6ef9a30baec6 and fixed in 7.2-rc1 with commit 9108f7fa493b4c88cbc09503e0c164244456bad5 Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2026-72453 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/base/regmap/regcache.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/9f171aa115ec76be02c76c5765cd2c865279e34a https://git.kernel.org/stable/c/9108f7fa493b4c88cbc09503e0c164244456bad5